feat!: Upgrade min AWS provider and Terraform versions to 6.0 and 1.5.7 respectively (#3412)

* feat!: Upgrade min AWS provider and Terraform versions to `6.0` and `1.5.7` respectively

* fix: Remove deprecated arguments in AWS v6.0 provider, upgrade Helm provider to v3.0, bump VPC module to v6.0

* fix: Remove `aws-auth` sub-module

* fix: Remove `platform` and `cluster_service_ipv4_cidr` variables from `user-data` sub-module

* fix: Resolve all marked `todos` that have been accumulated

* fix: Set default `http_put_response_hop_limit` to `1`

* fix: Remove IRSA support from Karpenter sub-module

* fix: Avoid making GET requests from data sources unless absolutely necessary

* feat: Add variable optional attribute definitions

* feat: Bump KMS key module version to latest, add remaining variable attribute definitions

* fix: Remove `cluster_` prefix from variable names to better match the underlying API

* fix: Move all EFA logic to the nodegroup itself

* fix: Remove arguments that do not make sense in EKS

* fix: Updates from plan validation

* fix: Remove more self-managed node group attributes that are commonly not used in EKS clusters

* fix: Remove data plane compute `*_defaults` variables that do not work with variable optional attributes

* fix: Ignore changes to `bootstrap_self_managed_addons` to aid in upgrade

* feat: Add support for `region` argument on relevant resources

* feat: Initial pass on upgrade guide

* fix: Updates from testing and validating EKS managed node group

* fix: Updates from testing and validating self-managed node group

* docs: Ensure addon ussage documented is aligned

* feat: Switch to dualstack OIDC issuer URL

* feat: Allow sourcing over overriding the Karpenter assume role policy

* fix: Use `Bool` instead of `StringEquals` for DenyHTTP queue policy

* fix: Correct use of `nullable` and default value propagation

tests/eks-fargate-profile/main.tf

@@ -11,9 +11,9 @@ data "aws_availability_zones" "available" {
 }
 
 locals {
-  name            = "ex-${basename(path.cwd)}"
-  cluster_version = "1.33"
-  region          = "eu-west-1"
+  name               = "ex-${basename(path.cwd)}"
+  kubernetes_version = "1.33"
+  region             = "eu-west-1"
 
   vpc_cidr = "10.0.0.0/16"
   azs      = slice(data.aws_availability_zones.available.names, 0, 3)
@@ -32,11 +32,11 @@ locals {
 module "eks" {
   source = "../.."
 
-  cluster_name                   = local.name
-  cluster_version                = local.cluster_version
-  cluster_endpoint_public_access = true
+  name                   = local.name
+  kubernetes_version     = local.kubernetes_version
+  endpoint_public_access = true
 
-  cluster_addons = {
+  addons = {
     kube-proxy = {}
     vpc-cni    = {}
     coredns = {
@@ -51,14 +51,8 @@ module "eks" {
   control_plane_subnet_ids = module.vpc.intra_subnets
 
   # Fargate profiles use the cluster primary security group so these are not utilized
-  create_cluster_security_group = false
-  create_node_security_group    = false
-
-  fargate_profile_defaults = {
-    iam_role_additional_policies = {
-      additional = aws_iam_policy.additional.arn
-    }
-  }
+  create_security_group      = false
+  create_node_security_group = false
 
   fargate_profiles = {
     example = {
@@ -78,6 +72,10 @@ module "eks" {
         }
       ]
 
+      iam_role_additional_policies = {
+        additional = aws_iam_policy.additional.arn
+      }
+
       # Using specific subnets instead of the subnets supplied for the cluster itself
       subnet_ids = [module.vpc.private_subnets[1]]
 
@@ -125,7 +123,7 @@ module "disabled_fargate_profile" {
 
 module "vpc" {
   source  = "terraform-aws-modules/vpc/aws"
-  version = "~> 5.0"
+  version = "~> 6.0"
 
   name = local.name
   cidr = local.vpc_cidr